Clutch-actuating mechanism.



v P., DAIMLER.4

CLUTCH' AcTUATIN-G MEQHANISM.

APPLICATION FILED .TUNE 10, 1912.

Patented Nov. 26,- 1912.

2 snBBTs-s'HEBT 1.

Wmesses firma/z- IP. lDAIMLBR, ummm ACTUATINGl MBGHANISM. APPLIOTQN FILED JUNE 10, 1912. l 904595593X Patented Nov. 26, 1912.

2 SHEETS-SHEET 2.

v PAUL DAIMLER, or cANNsfrATT, GERMANY, AssmNoR-ro miminu 1uo'reim-:Nressaim.-`

barren sTaTns raTnnT onirica..

SCHAFT, 0F STUTTGART, GERMANY, A FIRM.

'CLUTCH-Acruarine MECHANISM.

To all 'whom tha-Lay concern:

Be it known th-at I, PAUL DAIMLER, a subject of the King 'of lllurttemberg, and resi-l dent of S7 Waiblingerstrasse, Cannstatt, in' the Kingdom of Wurttembe'rg, GermanEmpire, haveinvented certain new and Improved Clutch-Actuat-ing Mechanism, ofl

Vfaces vcarried by the other shaftto be coupled the cones being provided with concentrically'and laterally projectinghubs upon each o-f which a ring or other'suitable nonrotatable member -is provided, the latter being forced apart by means of we es con'- nected to an operating lever so as to-di'sen-l gage the clutch.4 i y lt has now been found, that in many cases it is not desirableto throw both the friction cones simultaneously into engagement with their corresponding friction surfacesbut to allow the friction' cones to makey frictional Contact successively. By this means a cer'f tain amount of flexibility on Ithe part of the clutch is enabled when throwing the clutch into engagement as when only one of the. Y

balls n to form ball bearings, the loose rings friction cones is in engagement with its friction surface, a certain amount of slip is possible'so that vthe full velocity is gradually imparted to the shaft to be driven.

In carrying out my invention Athe, wedge is guided during its movement in such- -a manner that when the clutch is to-be disengaged, the two friction cones arewithdrau'n one after the other from their friction surfaces and on releasing the actuating mecha.- nism to again throw the clutch into engagement, the friction cones malte frictional contact with their friction surfaces in succes- V sion. By this arrangement, itis possible, on suddenly releasing the actuating mechanism, to bring the two friction clutches into en gagement in direct succession although not exactly*simultaneously and thus to obtain an almost instantaneous coupling while when it 'is desired to gradually couple the shafts together1 the actuating mechanism may be Specivcation of' Letters Patent.

rat-@niederen ac, Tera.

Application-mea June 1'o`, i912. serial No. 702,804.

gradually released so as tolrst of all allow one of the friction cones to engage and thus impart a certain velocity to the shaft to be coupled and then allowthe second friction lcone to engage. Y

According totthe present, invention the wedges are preferably guided in their movement .by means of stationary guide-waysor the like which are so arranged that when t clutch is fully in engagement, one inclined surface of the Wedgel contacts with one of the rings or like non-rotatable members on the hub of one of the cones while the other inclined surface of the wedge is' out of pontact with the ring or like member on the other hub.- On the drawings I have illustrat-ed this methodof guiding the wedges by way of example.

Figure 1 is a side-.view vof the clutch actuating mechanism and Fig. 2 is a -plan View thereof. F ig. 3 is a vertical section through -the clutch and its actuating mechanism.4

'a indleates the casing of the clutch whosel interior surface constitutes a double frustoconical friction surface. l V

e, e are frusto-conlcal fr1ct1on. members coperating with the interior surface ofthe casing a and vhaving laterally projecting hubs e2 ande3 respectively, arranged concenvtrically'the'one within the other. 1 Secured on the -outer end of the inner hub c2 is a ball ring c3 and mounted on the hub 'e3 is another ball ring- 3, these ball rings 63,03, coperating with loose rings b and c respectively and b and 'o being secured-against rotationin with pins h and o respectively, onv which are rotatably mounted rollers b2 4and c2 re spectively. Between each pair of rollers 7J? and c2 engages a wedge al which is carried by means of articulated connecting rods 'h which are' also articulated to cranks z' ou the shaft .7c of a disengaging lever m.

Rotatably secured laterally ofthe wedges il' are rollers d vertically movable in stationary guide-ways f depending from the shaft In or from any other suitable fixed part. -Th'e guide-ways are arranged in such a position that, when the clutch in engagement (which is the `position shown on the drawings), they are somewhat nearer the pins e than the pins L and, as the position of the wedge (Z` is determined by the position of the guide-ways by reason lle Til

'-cone el from its friction surface.

ofthe rollers rZ secured tothe Wedges (Z moving in the guide-Ways f, one inclined surface of the Vwedge (Z will engage the roller c2, When the clutch is in engagement,A

this position being so arranged Athat the Wedges d contact with the rollers c2 but are ont of contact'vvith Vthe rollers b2; 4On depressing the actuating,` lever m, the wedges Z Vare 'forced downwardly through the medium of the cranks z' and connecting rods L and owing to' vthe movement of the rollers d being guided by the guidevvays f, the ring c is r'st of all n'ioved outward so as to disengage the friction conev e from its surface. @n furtl'ier downward movement of the '-tyedges al, the latter Contact Withtlie rollers b and thereupon Withdraw. the friction l On releasing the lever m the movement of the parts is reversed, that is to say, the friction conel c is first brought into engagement With its friction surface and thereafter the friction cimes@v likewise brought into cngageineni.

i clairmf l. The combination 'With a double cono Afriction clutch having tivo friction cones slidably movable in opposite directions on one shaft tov be coupled, a spring betiveen said cones, friction surfaces carried by the other shaft to becoupled, concentricall-y and laterally projecting` hubs on said cones, members prevented from rotation on said hubs, a Wedge betvveen'said members and a disengaging lever connected to said Wedge; of Lixed means for guiding said wedge so that, on actuatino' said lever in one direction, said Wedge causes the tvvojfriction 'y cones to engage one after the other With the friction surfaces and to disengage one after the othery from said friction surfaces on actuating said lever in the other i'liroction.

2. The combination with a double cone friction clutch havingh two friction cones slidably movable in opposite directions on one shaftto be coupled, a spring,l between said cones, friction surfaces carried by the other shaft to be coupled,-concentrically and laterallyT projecting hubs on `said cones, members prevented from rotation on said hubs, a Wedge between said members and a disengaging lever connected to said Wedge; of means for guiding said Wedge so that, on actuating said lever in onel direction,. said Wedgevcauses the tvvo friction conesto engage one after the-other with the friction surfaces and to disengage one after the other from said friction surfaces on actuating said lever in the otherdirection', said means comprisingl a fixed guide-Way and a roller movable therein .and carried by said Wedge. u

3. The combination with a double cone friction clutch having two frictiony cones slidably movable in opposite directions on one shaft to'be coupled, a spring between said cones, friction surfaces carried bythe other shaft to be coupled, concentrically and laterallyY projecting hubs onl said cones, i'i'ieinbers prevented from rotationl on said hubs7 a. Wedge betvv'een said members and a discngaging lever connected to said Wedge;

of fixed i'iieans for'guiding said Wedge so that, on actuating said lever in one direction, said Wedge causes the two friction cones to engage one after the other with the friction surfaces and to disengage one after the other from said friction surfaces on actuating' said lever in the other direction, said guide means being so arranged that, when the friction cones and surfaces are in Contact, the 'wedge makes Contact with one of said members but is out 'of contact with the other member.

li. The combination vvith a do `Iale cone 'friction clutch having tivo friir conesv slid y movable in opposite dir-'f tions on one s fait to be coupled, a spring betvveen 'said cones, friction surfaces carried by-theI other shaft to be coupled, concentrically and laterally projecting?r hubs on said cones,`

members prevented 4from rotation on said hubs, a Wedge between said members and a discursivaging,` lever connected to said wedge;

ofmeans for guidingv said ,Wedge so that, on actuating said lever in'A one direction, said `Wedge causes theV tivo friction cones to engage one after the other with 'the friction surfaces and .to disengage one after the other from said friction surfaces on PAUL natures.

liN/'itnessesz fonnn'r UIILAND,

ERNEST ENTENMANN. 

